Cheetah 640 CL

The Cheetah-640-CL camera is the fastest InGaAs infrared camera in the world. The camera has been designed for applications where high speed imaging matters. Whether for adaptive optics, spectral analysis in the SWIR band, tracking of fast and hot objects, electro-coalescence, etc.

This unit is equipped with a dedicated high speed InGaAs detector array working up to 1.7 μm and comes in three speed versions: 444, 865 and 1730 Hz. It allows you to visualize the ultra high speed features of your specific research application.

The TE1-cooling reduces dark current and improves signal to noise ratios for contrast-rich and stable imaging performance.

The camera head interfaces to your frame grabbing system via CameraLink (base, full or dual medium – depending on the version).

The Cheetah-640-CL is delivered with a software development kit which offers direct access to various camera settings and allows easy integration with your own high speed image grabbing system.

Xenics Cheetah 640 CL Technical Specifications
Camera Model	Cheetah-640-CL 400Hz	Cheetah-640-CL 800Hz	Cheetah-640-CL 1700Hz
Array type	InGaAs photodiode array	InGaAs photodiode array	InGaAs photodiode array
Resolution	640 x 512	640 x 512	640 x 512
Pixel size	20 µm x 20 µm	20 µm x 20 µm	20 µm x 20 µm
Spectral band	0.9 μm to 1.7 μm (VisNIR optional 0.4 to 1.7 μm)	0.9 μm to 1.7 μm (VisNIR optional 0.4 to 1.7 μm)	0.9 μm to 1.7 μm (VisNIR optional 0.4 to 1.7 μm)
Pixel operability	> 99 %	> 99 %	> 99 %
Array size	12.8 mm x 10.2 mm; 16.4 mm diagonal	12.8 mm x 10.2 mm; 16.4 mm diagonal	12.8 mm x 10.2 mm; 16.4 mm diagonal
Array cooling	TE1-cooled (Optional: TE3)	TE1-cooled (Optional: TE3)	TE1-cooled (Optional: TE3)
Dark current	<2 x 10⁵ e -/s	<2 x 10⁵ e -/s	<2 x 10⁵ e -/s
Optical Interface	C-mount - Spectrometer holes	C-mount - Spectrometer holes	C-mount - Spectrometer holes
Max frame rate (full frame)	444 Hz	865 Hz	1730 Hz
Window of interest	Minimum size 32 x 4	Minimum size 32 x 4	Minimum size 32 x 4
Exposure time range	1 μs up to 40 ms @ 25°C sensor temperature (high gain mode); or up to 100 ms @ 268K sensor temperature (high gain mode)	1 μs up to 40 ms @ 25°C sensor temperature (high gain mode); or up to 100 ms @ 268K sensor temperature (high gain mode)	1 μs up to 40 ms @ 25°C sensor temperature (high gain mode); or up to 100 ms @ 268K sensor temperature (high gain mode)
Gain modes	High gain and low gain	High gain and low gain	High gain and low gain
Noise	138 e- rms (high gain)	138 e- rms (high gain)	138 e- rms (high gain)
Dynamic range	470:1 (>53 dB) (high gain)	470:1 (>53 dB) (high gain)	470:1 (>53 dB) (high gain)
Camera control	CameraLink (serial LVDS line on CameraLink port 1)	CameraLink (serial LVDS line on CameraLink port 1)	CameraLink (serial LVDS line on CameraLink port 1)
Image acquisition	Base CameraLink (12 bit)	Medium CL (12 bit)	) Full CameraLink (8 bit), 2 x medium CameraLink (12 bit)
Trigger	Trigger in and out (3.3 V CMOS)	Trigger in and out (3.3 V CMOS)	Trigger in and out (3.3 V CMOS)
Power consumption	< 4 W without TEC operation; 25 W at maximum cooling	< 4 W without TEC operation; 25 W at maximum cooling	< 4 W without TEC operation; 25 W at maximum cooling
Power supply	12 V	12 V	12 V
Camera cooling	Forced air cooling	Forced air cooling	Forced air cooling
Ambient operating temperature range	0°C to 50°C	0°C to 50°C	0°C to 50°C
Dimensions (W x H x L mmᵌ)	140 x 135 x 90	140 x 135 x 90	140 x 135 x 90
Weight camera head	2 kg	2 kg	2 kg